Wind turbine with low vertical axis

ABSTRACT

A wind module includes a base plate, a turbine rotatably mounted on the base plate, a plurality of directional fins carried by the base plate peripherally adjacent said turbine, and a cover plate over the turbine and plurality of directional fins. The cover plate may have a domed shape. The plurality of vertical blades may be eight or more in number. In addition, each vertical blade may have an asymmetrical profile based on an aircraft wing which favors a double thrust and drag effect The directional fins may also have an asymmetrical profile to accelerate wind flow. The turbine, base plate, cover plate, and each of the directional fins is preferably integrally formed as a single piece to facilitate assembly.

FIELD OF THE INVENTION

The invention relates to wind turbines, and, more particularly, to windturbines including peripheral directional fins or blades and associatedmethods.

BACKGROUND OF THE INVENTION

According to the prior art and according to the French publication Nos.FR 25099801A (5/1984), FR 2556783A (6/1987) and FR 2624210A (4/1990)pertaining to a static wind module and a three-function turbine, allwind machines generate turbulence and vibrations that are detrimental toefficiency and reliability. Furthermore, the machining and assembling ofa multitude of elementary parts considerably reduces the competitivityof the product.

SUMMARY OF THE INVENTION

The present invention is aimed at overcoming this state of affairs bymeans of a comprehensive restructuring characterized by a molding, in asingle operation, of only four monolithic blocks constituting a turbinewith eight blades whose number may vary, a base plate , a slightlydomed, circular flat cover plate and peripheral directional small finswith an asymmetrical profile whose number may also vary.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view of the wind turbine in accordance withthe present invention.

FIG. 2 is a cross-section view of the wind turbine of FIG. 1 taken alonglines CD.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Thus, the turbine (1) FIG. 1 is formed by a cylindrical body (5) which,during the molding, fixedly joins together the peripheral set ofasymmetrically profiled vertical blades (6) whose design is based on theaircraft wing which is favorable to the double thrust and drag effect.

The base plate (2) FIG. 2 has a bearing (7) at its center in which thevertical shaft of the turbine (8) pivots. Furthermore, this base plate(2) has, on its periphery, a series of vertical small fins (4) whichcreate an equivalent number of pressure surfaces and suction surfaceswhich channel and orient the air flow in the extension of the incurvatedend of each blade, corresponding to the point of interaction a(depression) as well as the rectilinear part where the active pressure b(stress) is exerted.

At its center, the cover plate (3) has a self-aligning bearing (9)holding the vertical shaft of the turbine (8). Consequently, at eachrevolution of the turbine (1), each of the blades (6) intercepts twoeffects: a main action at the point of interaction a and a depression atthe point b.

The advantages of a four-monolith restructuring of a static wind moduleof this kind including a turbine with double driving power (1) are:improved efficiency, reliability and competitivity.

The design of wind sensor module is characterized by the assembling ofthree complementary elements cast in a single piece, a slightly domedprotective cover plate (3), a turbine (1), and a base plate (2) providedwith directional peripheral small fins (4). The turbine (1) comprises acylindrical body formed by eight or more (6) vertical blades. Each bladepossesses an asymmetrical profile based on the aircraft wing whichfavors the double thrust and drag effect. The base plate (4) comprisesperipheral small fins (4) also with an asymmetrical profile, in order toaccelerate the wind flow. An energy-receiving housing (10) is providebeneath the base plate (2).

The module enables the interception of winds from all directions, inthat it includes directional, external, peripheral fins (4). Theassembling of the three elements, that is, the cover plate (3), baseplate (2) and directional small fins (4), forms a protective streamlinefairing with respect to the immediate environment. The static windmodule has a flat shape and set of peripheral directional fins (4) thatenable the interception of winds from all directions and of any force,without regulation and without making use of any system of orientation.

What is claimed is:
 1. A wind module comprising: a base plate; a turbinerotatably mounted on the base plate, the turbine including at leasteight vertical blades non-radially positioned in the turbine, and eachof the blades having an asymmetrical aircraft wing profile; a pluralityof directional fins non-radially positioned on the base plateperipherally adjacent the blades of the turbine, each of the fins havingan asymmetrical aircraft wing profile which is inverted with respect tothe asymmetrical aircraft wing profile of the blades to produce a doublethrust and drag effect; and a cover plate over the turbine and theplurality of directional fins; the asymmetrical aircraft wing profile ofthe blades and the fins comprising a plano-convex profile; and theblades having leading edges disposed adjacent to trailing edges of thefins.
 2. A wind module according to claim 1 wherein wind flow isdirected in a non-radial direction.
 3. A wind module according to claim1 further comprising: an output shaft connected to the turbine; and amount for rotatably mounting the output shaft on the base plate.
 4. Awind module according to claim 1 wherein the base plate is integrallyformed as a single piece.
 5. A wind module according to claim 1 whereinthe turbine is integrally formed as a single piece.
 6. A wind moduleaccording to claim 1 wherein the cover plate is integrally formed as asingle piece.
 7. A wind module according to claim 1 wherein each of thefins is integrally formed as a single piece.
 8. A wind modulecomprising: a base plate integrally formed as a single piece; a turbineintegrally formed as a single piece and rotatably mounted on the baseplate, the turbine including at least eight vertical blades non-radiallypositioned in the turbine, and each of the blades having an asymmetricalaircraft wing profile; a plurality of directional fins non-radiallypositioned on the base plate peripherally adjacent the blades of theturbine, each of the fins being integrally formed as a single piece andhaving an asymmetrical aircraft wing profile which is opposite to theasymmetrical aircraft wing profile of the blades; and a cover plateintegrally formed as a single piece and positioned over the turbine andthe plurality of directional fins; the asymmetrical aircraft wingprofile of the blades and the fins comprising a plano-convex profile;and the blades having leading edges disposed adjacent to trailing edgesof the fins.
 9. A wind module according to claim 8 wherein wind flow isdirected in a non-radial direction.
 10. A wind module according to claim8 further comprising: an output shaft connected to the turbine; and amount for rotatably mounting the output shaft on the base plate.
 11. Amethod of making a wind module comprising: integrally forming a baseplate as a single piece; integrally forming a turbine as a single pieceand rotatably mounting the turbine on the base plate, the turbineincluding at least eight vertical blades non-radially positioned in theturbine, and each of the blades having an asymmetrical aircraft wingprofile; integrally forming a plurality of directional fins andpositioning the fins non-radially on the base plate peripherallyadjacent the blades of the turbine, each of the fins having anasymmetrical aircraft wing profile which is opposite to the asymmetricalaircraft wing profile of the blades; and integrally forming a coverplate as a single piece and positioning the cover plate over the turbineand the plurality of directional fins; the asymmetrical aircraft wingprofile of the blades and the fins comprising a plano-convex profile;and the blades having leading edges disposed adjacent to trailing edgesof the fins.
 12. A method according to claim 11 wherein wind flow isdirected in a non-radial direction.
 13. A method according to claim 11further comprising: connecting an output shaft to the turbine; androtatably mounting the output shaft on the base plate.